• 제목/요약/키워드: 한국화학연구원

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초임계 유체 염색용 아조계 분산염료 합성 및 PET 섬유에 대한 염색 특성 연구 (Synthesis of Azo based Disperse Dyes for Dyeing Polyester Fiber in Supercritical Carbon Dioxide)

  • 신승림;안경룡;이선혜;이승은;고은희;김창일;전근
    • 한국염색가공학회지
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    • 제31권3호
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    • pp.135-146
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    • 2019
  • A series of azo based disperse dyes were synthesized and applied to polyester(PET) fiber in supercritical carbon dioxide($ScCO_2$). Various aniline derivatives were used as diazo component and coupled with glycine ethylester or carbonic acid ethylester derivatives to give azo based disperse dyes. Depending on the various diazo substituents, absorption maxima varied from 415 to 529nm in acetone. Dyeing in $ScCO_2$ was carried out at $120^{\circ}C$ and 250bar pressure for 2hrs with 0.5% o.w.f. of dye concentration. Dyed PET fiber had excellent brightness and good light, washing and perspiration(acid/alkali) fastness properties.